Safety car equipment



May 31, 1932.

J. M. DAPRON SAFETY CAR EQUIPMENT Filed June 21. 1928 INVENTOR JOSEPH M. DAPRON BY W WWW V ATTORNEY p Patented Ma 31; 1932' 1 UNITED? STATES ATENT oFF IcE JOSEPH m nsrnorr, or sr. LOUIS, MIsso'URr, AssI'Gnon TO THE wnsrrnenonsn A R BRAKE COMPANY, OF WILMERDING, PENNSYLVANIA, A CORPORATION OF'PENNQ 'SYLVANIA- k a SAFETY can Application filed. Jane 21,

This invention relates to fluid pressure brake equipments, and more particularly to the installation of a safety car control equip- 11181111} 011 EL .tI'ELCtlOIl CELT.

Air brake equipmentsfor electric traction cars have been gradually .developed from a simple straight air brake withfew parts to a more complicated equipment known as a safety car control equipment employing a large number of valve devices and considerable piping. i p

This has made itdificult for themanu facturer to find available space for the equip! ment on the car body. 7 a I i In addition, the danger of freezing of air brake devices, as well as piping, in cold climates has made it necessary that the best.

possible protection be provided for these devices. As a consequence, such apparatus as. triple valve devlces, emergency valve devices,

' door and step controllers, andin fact all fluid pressure brake apparatus subject to moisture, have been installed inside the car, as well as the piping.

While this system of installing piping and valve devices inside of the'car has provided the desired protection, it has tended toand piping must pass through.

In other cases, it has been found necessary to omit electric car heaters from underneath the seats, in order to provide space for fluid pressure valve devices. With recent typesv of car seats, the seat is so close to the floor, that it is practically impossible to install 'valve devices underneath same.

The principal object ofjmy' invention is to provide a fluid pressure brakeinstallation in which theabove difl icultiesare overcome.

For this purpose, valvedevices are grouped together in abox'installed underneath the units, as may be desired, such, for example,

glay valve device'7, a magnet valve device 8, and an electric pump governor 9.

EQUIPMENT 192s. Serial No. 287,096.

car, and copper tubing is employed instead ofj th'eusualiron pipe.In addition, a car heaterisinstalled in. the box, which serves to prevent the apparatus inthe boxfrom freez-' ing while also assisting in heating the car.

Inthe accompanying drawings, Fig. 1- is a sectional view of' a portion of a car, showing, my improved installation of equipment, and Fig. 2 a section on the line 2-2 of Fig. 1.'

As shoWn-infthe drawings, a box 1 is'secured to the under side .ofthe car framing 2 and may be secured thereto by single brackets 3.

Nithin the box 1 are installed various valve as a brake controlling valve device 4, an

emergency valve device 5, am in reservoir cut-off valve device6, adoor controlling re- A pipe 10,connected to the usual main reservoir (not shown), extends into the box 1 and is connected, as required, to the various valve devices within the box; The necessary controlling pipes, designated generally by the reference numeral 11, pass through openings in the lower portion of the car framing and extendunderneath the car flooring 12 to I tlie'end of the car orto both ends of the car, in the case of a double end control car.

Copper piping is employed andithus per-.v mits read bending of the pipe, where necessary, set at the number of pipe fittings required is reduced; Copper tubing can be l readily bent tofit into and around what were previously considered most di'lfi'cult places for th'eIinstallation' of iron pipe. The pipes 11 are bent at the end of the car and risevfr'om'the flooring in a space betweenv the sash 13and thedash lining 14, the pipes beingagain bent and extendingthrough an opening in the dash lining to the usual brake valve device 15. a

An exit door engine 20 and an entrance door. engine 21 may be installed underneath thecar body and a foot valve device 22 be arranged above the car floor 12.

p The copper tubing is, of course, free from scale, rust and foreign matter which is customary with iron pipe. Pipe and fitting leakage, owing to the minimum number'of fillings employed, is naturally reduced. Copper tubing and brass fittings will unquestiona ly last the life of a car body. The valve devices 5 installed in the box 1 being shielded from the accumulation of foreign matter, periods of inspection and lubrication may be extended.

With the group system of installation of lo fluid pressure devices, freezing may be prevented by installing in the box,-a car seat heater 16. A register opening 17 is provided through the car flooring 12, directly above the heater, so that heat from the heater will pass 15 into the car and the'temperature of the group of devices within the box, will be maintained substantially the same as that within the car and if there is any difference, the temperature of the group will be higher.

mv All pipes leaving the box 1 are provided with union fittings, indicated generally by the reference numeral 18, said fittings being located outside of the box, so that if it is desired to inspect or make repairs, or test the I 20, valve devices, the union fittings may bereadily disconnected and the box removed'by removing the nuts of the bolts which secure the brackets 3 to the car framing.

The removed box may be replaced by an- 'm other box containing a duplicate group of equipment, so that maintenance of the equipment will not cause any appreciable delay in the use of the car in service.

' ,On the other hand, the sides of the box are 35 removable, being held in place by. thumb screws 19, so that when desired, ready access to the valve devices can be had, without rcmoving the box from the car.

While one illustrative embodiment of the i0 invention has been described in detail, it is not my intention to limit its scope to that embodiment or otherwise than by the terms of the appended claim.

Having now described my invention, What 0.5 I claim as new and desire to secure by Letters Patent, is r The combination with a car body, of a box secured underneath the car body, a group of fluid pressure valve devices installed in said 510 box, and means installed in said box for heating the interior of the box, the heat from said means being adapted to pass to the interior of the car through an opening in thecar body. In-testimony'whereof I have hereunto set my hand, this 18th day of June, 1928.

' JOSEPH M. DAPRON. 

